公开(公告)号：US20100149951A1

公开(公告)日：2010-06-17

申请号：US12593552

申请日：2008-03-13

申请人： Kunihiko Horikawa ,  Eiji Muramatsu ,  Masahiro Miura ,  Atsushi Yamaguchi ,  Kazuo Kuroda ,  Kazutoshi Kitano

发明人： Kunihiko Horikawa ,  Eiji Muramatsu ,  Masahiro Miura ,  Atsushi Yamaguchi ,  Kazuo Kuroda ,  Kazutoshi Kitano

IPC分类号： G11B7/135

CPC分类号： G11B7/1353 ,  G11B7/0908 ,  G11B7/1374 ,  G11B7/1387 ,  G11B2007/13727

摘要： An information recording/reproducing device includes a light source separately projecting laser light for recording or reproducing, an optical system leading the projected laser light to a recording medium, a diffracting element separating laser light into main- and beam sub-beams, an evanescent light generating element irradiating evanescent light in relation to the separated sub-beam to a track where no recording pit is formed, a sub-light receiving element for receiving return light in relation to the sub-beam, a moving element for moving the evanescent light generating element in relation to the sub-beam to a direction to change a gap with the recording surface, and a control element; for controlling the moving element so as to make the gap become a predetermined target value in accordance with a gap error signal containing a signal indicative of a light amount of the return light in relation to the received sub-beam.

摘要翻译： 信息记录/再现装置包括分别投射用于记录或再现的激光的光源，将投射的激光导向记录介质的光学系统，将激光分离成主光束和光束子光束的衍射元件，ev逝光 发射元件相对于分离的子光束照射到不形成记录凹坑的轨道的ev逝光，用于接收与子光束相关的返回光的子光接收元件，用于移动产生渐逝光的移动元件 元件相对于子光束到改变与记录表面的间隙的方向，以及控制元件; 用于控制移动元件，以使得间隙根据包含相对于所接收的子光束的指示返回光的光量的信号的间隙误差信号而变为预定目标值。

公开(公告)号：US20070217310A1

公开(公告)日：2007-09-20

申请号：US10594527

申请日：2005-03-30

申请人： Akira Shirota ,  Kunihiko Horikawa ,  Hiroyuki Uchino ,  Yoshio Sasaki ,  Shoji Taniguchi ,  Eiji Muramatsu

发明人： Akira Shirota ,  Kunihiko Horikawa ,  Hiroyuki Uchino ,  Yoshio Sasaki ,  Shoji Taniguchi ,  Eiji Muramatsu

IPC分类号： G11B7/0045

CPC分类号： G11B7/1263 ,  G11B7/00456

摘要： The present invention provides a recording pulse generating apparatus capable of forming a recording pit having a proper shape even at the time of ultra-high-speed recording of, for example, 8×recording or higher. A recording controller 10 for generating recording pulse signals having lengths corresponding to ten kinds of lengths of pits formed at the time of recording information has a recording controller 10 for generating the recording pulse signals so that the amplitude of a recording pulse signal corresponding to a pit having a length of 4T changes from a first amplitude to a second amplitude, and generating the recording pulse signals so that the amplitude of a recording pulse signal corresponding to a pit having a length of 5T or longer changes from a third amplitude to a fourth amplitude and further changes to a fifth amplitude.

摘要翻译： 本发明提供一种记录脉冲发生装置，即使在例如8×或更高的超高速记录时也能够形成具有适当形状的记录凹坑。 用于产生具有对应于在记录信息时形成的凹坑的十种长度的长度的记录脉冲信号的记录控制器10具有用于产生记录脉冲信号的记录控制器10，使得对应于凹坑的记录脉冲信号的幅度 具有从第一幅度到第二幅度的4T长度的变化，并且产生记录脉冲信号，使得对应于长度为5T或更长的凹坑的记录脉冲信号的幅度从第三幅度变化到 第四幅度并进一步变化到第五幅度。

公开(公告)号：US07139230B2

公开(公告)日：2006-11-21

申请号：US10237598

申请日：2002-09-10

申请人： Akira Shirota ,  Kunihiko Horikawa ,  Eiji Muramatsu ,  Shoji Taniguchi

发明人： Akira Shirota ,  Kunihiko Horikawa ,  Eiji Muramatsu ,  Shoji Taniguchi

IPC分类号： G11B7/00

CPC分类号： G11B7/00456 ,  G11B7/0062

摘要： The information recording apparatus irradiates a laser beam on a recording medium such as an optical disk and forms a recording mark corresponding to a recording signal to record information. A recording pulse signal includes a mark period irradiating the laser beam for forming the recording mark and a space period in which the recording mark is not formed. The mark period has a top pulse period and an intermediate bias period following the top pulse period. The mark period constituted by the top pulse period and the intermediate bias period does not have a continuous part of a plurality of pulses having a small pulse width unlike a pulse train, so that the correct recording mark can be stably formed on the recording medium without an inadequate deformation of a recording pulse shape, even in the case of a high speed recording.

公开(公告)号：US07800999B2

公开(公告)日：2010-09-21

申请号：US10577227

申请日：2005-06-30

申请人： Eiji Muramatsu ,  Kunihiko Horikawa ,  Kazuo Kuroda

发明人： Eiji Muramatsu ,  Kunihiko Horikawa ,  Kazuo Kuroda

IPC分类号： G11B7/12

CPC分类号： G11B7/00736 ,  G11B7/1267 ,  G11B7/24038 ,  G11B2007/0013

摘要： An information recording medium (100) is provided with: a first recording layer (L0 layer) having a first calibration area (103-1) in which test information for calibrating a power of laser light in recording record information can be recorded; and a second recording layer (L1 layer) having a second calibration area (103-2) in which the test information can be recorded and in which at least one portion of a recording area faces the first calibration area, wherein the first calibration area and the second calibration area including a space area (103U-1, 103U-2) having a predetermined size in positions facing each other, the test information is recorded in a recording area (103R-1) located on one side, centered on the space area, in the first calibration area, and the test information is recorded in a recording area (103R-2) located on other side which is opposite to the one side, centered on the space area, in the second calibration area.

摘要翻译： 信息记录介质（100）具有：具有第一校准区域（103-1）的第一记录层（L0层），其中可以记录用于校准记录记录信息中的激光功率的测试信息; 和具有第二校准区域（103-2）的第二记录层（L1层），其中可以记录测试信息，并且记录区域的至少一部分面向第一校准区域，其中第一校准区域和 所述第二校准区域包括在彼此面对的位置中具有预定尺寸的空间区域（103U-1,103U-2），所述测试信息被记录在位于一侧的记录区域（103R-1）中， 区域，并且测试信息被记录在第二校准区域中位于与空间区域相对的另一侧的另一侧的记录区域（103R-2）中。

公开(公告)号：US20100118684A1

公开(公告)日：2010-05-13

申请号：US12593439

申请日：2008-03-13

申请人： Kunihiko Horikawa ,  Eiji Muramatsu ,  Kazutoshi Kitano ,  Atsushi Yamaguchi ,  Masahiro Miura ,  Kazuo Kuroda

发明人： Kunihiko Horikawa ,  Eiji Muramatsu ,  Kazutoshi Kitano ,  Atsushi Yamaguchi ,  Masahiro Miura ,  Kazuo Kuroda

IPC分类号： G11B7/135

CPC分类号： G11B7/0908 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/1387 ,  G11B2007/13727

摘要： An information recording and reproducing device diffracts by a diffracting means (14) to make laser light separated into a main beam and a sub-beam, irradiates evanescent light in relation to the main beam, by an evanescent light generating means (21), to a track where a recording pit provided on a recording surface of a recording medium is formed and also irradiates evanescent light in relation to the sub-beam to be separated to a track where no recording pit provided on the recording surface of the recording medium is formed. A moving means (210) moves the evanescent light generating means to a direction to change a gap with the recording surface. Further, a judging means (40) judges an uneven state of the recording pit formed on the recording medium, a signal generating means (3161) generates a gap error signal from a signal indicative of a return light amount in relation to the sub-beam or the main beam in accordance with the result, a control means (315) controls the moving means in accordance with a gap error signal so as to make the gap become a target value in response to the uneven state to be judged.

摘要翻译： 信息记录和再现装置通过衍射装置（14）衍射，以使分离成主光束和子光束的激光相对于主光束相对于主光束照射消逝光，由ev逝光发生装置（21），以 形成记录介质的记录表面上的记录凹坑的轨道，并且还将相对于要分离的子光束的ev逝光照射到不形成记录介质的记录表面上的记录凹坑的轨道 。 移动装置（210）将瞬逝光发生装置移动到与记录表面改变间隙的方向。 此外，判断装置（40）判断在记录介质上形成的记录凹坑的不均匀状态，信号产生装置（3161）从表示相对于子光束的返回光量的信号产生间隙误差信号 或主光束，根据结果，控制装置（315）根据间隙误差信号控制移动装置，以使得间隙响应于待判断的不均匀状态而变为目标值。

公开(公告)号：US07564759B2

公开(公告)日：2009-07-21

申请号：US10594527

申请日：2005-03-30

申请人： Akira Shirota ,  Kunihiko Horikawa ,  Hiroyuki Uchino ,  Yoshio Sasaki ,  Shoji Taniguchi ,  Eiji Muramatsu

发明人： Akira Shirota ,  Kunihiko Horikawa ,  Hiroyuki Uchino ,  Yoshio Sasaki ,  Shoji Taniguchi ,  Eiji Muramatsu

IPC分类号： G11B20/10

CPC分类号： G11B7/1263 ,  G11B7/00456

摘要： The present invention provides a recording pulse generating apparatus capable of forming a recording pit having a proper shape even at the time of ultra-high-speed recording of, for example, 8×recording or higher.A recording controller 10 for generating recording pulse signals having lengths corresponding to ten kinds of lengths of pits formed at the time of recording information has a recording controller 10 for generating the recording pulse signals so that the amplitude of a recording pulse signal corresponding to a pit having a length of 4T changes from a first amplitude to a second amplitude, and generating the recording pulse signals so that the amplitude of a recording pulse signal corresponding to a pit having a length of 5T or longer changes from a third amplitude to a fourth amplitude and further changes to a fifth amplitude.

摘要翻译： 本发明提供一种记录脉冲发生装置，即使在例如8×或更高的超高速记录时也能够形成具有适当形状的记录凹坑。 用于产生具有对应于在记录信息时形成的凹坑的十种长度的长度的记录脉冲信号的记录控制器10具有用于产生记录脉冲信号的记录控制器10，使得对应于凹坑的记录脉冲信号的幅度 具有从第一幅度到第二幅度的4T长度的变化，并且产生记录脉冲信号，使得对应于具有5T或更长的长度的凹坑的记录脉冲信号的幅度从第三幅度变化到第四幅度 并进一步改变为第五幅度。

公开(公告)号：US07474601B2

公开(公告)日：2009-01-06

申请号：US11703112

申请日：2007-02-07

申请人： Akira Shirota ,  Kunihiko Horikawa ,  Eiji Muramatsu ,  Shoji Taniguchi

发明人： Akira Shirota ,  Kunihiko Horikawa ,  Eiji Muramatsu ,  Shoji Taniguchi

IPC分类号： G11B7/00

CPC分类号： G11B7/00456 ,  G11B7/0062

摘要： The information recording apparatus irradiates a laser beam on a recording medium such as an optical disk and forms a recording mark corresponding to a recording signal to record information. A recording pulse signal includes a mark period irradiating the laser beam for forming the recording mark and a space period in which the recording mark is not formed. The mark period has a top pulse period and an intermediate bias period following the top pulse period. The mark period constituted by the top pulse period and the intermediate bias period does not have a continuous part of a plurality of pulses having a small pulse width unlike a pulse train, so that the correct recording mark can be stably formed on the recording medium without an inadequate deformation of a recording pulse shape, even in the case of a high speed recording.

摘要翻译： 信息记录装置将激光束照射在诸如光盘的记录介质上，并形成对应于记录信号的记录标记以记录信息。 记录脉冲信号包括照射用于形成记录标记的激光束的标记周期和不形成记录标记的空间周期。 标记周期具有在顶部脉冲周期之后的顶部脉冲周期和中间偏置周期。 由顶脉冲周期和中间偏置周期构成的标记周期不像脉冲序列那样具有脉冲宽度小的多个脉冲的连续部分，从而可以在记录介质上稳定地形成正确的记录标记，而无需在 记录脉冲形状的变形不足，即使在高速记录的情况下也是如此。

公开(公告)号：US20070109934A1

公开(公告)日：2007-05-17

申请号：US10577774

申请日：2004-09-29

申请人： Kunihiko Horikawa ,  Hiroyuki Uchino ,  Shoji Taniguchi ,  Akira Shirota ,  Yoshio Sasaki ,  Eiji Muramatsu

发明人： Kunihiko Horikawa ,  Hiroyuki Uchino ,  Shoji Taniguchi ,  Akira Shirota ,  Yoshio Sasaki ,  Eiji Muramatsu

IPC分类号： G11B7/12

CPC分类号： G11B7/00456 ,  G11B7/1267

摘要： An information recording apparatus (300) is provided with: a recording device (352) for irradiating an information recording medium (100) with laser light and for recording information onto the information recording medium; an obtaining device (354) for obtaining at least one of (i) a special OPC strategy for defining a waveform of the laser light used to calculate an optimum laser power of the laser light for recording the information at a second recording speed different from a first recording speed, at the first recording speed, and (ii) a recording strategy for defining a waveform of the laser light used to record the information at the second recording speed; a power calculating device (354) for calculating the optimum laser power by using the special OPC strategy at the first recording speed; and a controlling device (354) for controlling said recording device to record the information at the second recording speed, by using the calculated optimum laser power and the recording strategy.

摘要翻译： 信息记录装置（300）具有：用于利用激光照射信息记录介质（100）并将信息记录在信息记录介质上的记录装置（352）; 一种用于获得（i）用于定义用于计算激光的最佳激光功率的激光的波形的特殊OPC策略的获取装置（354），用于以与第二记录速度不同的第二记录速度记录信息 第一记录速度，以及（ii）用于定义用于以第二记录速度记录信息的激光波形的记录策略; 功率计算装置，用于通过在第一记录速度下使用特殊OPC策略来计算最佳激光功率; 以及控制装置（354），用于通过使用所计算的最佳激光功率和记录策略来控制所述记录装置以第二记录速度记录信息。

公开(公告)号：US20060098547A1

公开(公告)日：2006-05-11

申请号：US10517525

申请日：2003-04-02

申请人： Kunihiko Horikawa ,  Shoji Taniguchi ,  Eiji Muramatsu ,  Akira Shirota

发明人： Kunihiko Horikawa ,  Shoji Taniguchi ,  Eiji Muramatsu ,  Akira Shirota

IPC分类号： G11B5/09

CPC分类号： G11B7/00456 ,  G11B7/0062

摘要： Based on a recording signal, a recording pulse signal, which includes a top pulse located at a front end portion and having a first magnitude, a last pulse located at a back end portion and having the first magnitude, and an intermediate bias portion located between the top pulse and the last pulse and having a second magnitude, is generated. Based on the recording pulse signal, a light source is controlled, and a laser pulse is irradiated on a recording medium. Recording marks corresponding to the recording signal are formed on the recording medium. In generating the recording pulse signal, when the recording medium is rotationally driven, a position of the top pulse is shifted ahead of a position of the top pulse when the recording medium is rotationally driven at the first rotation speed, when the recording medium is rotationally driven at the second control speed.

摘要翻译： 基于记录信号，记录脉冲信号，其包括位于前端部并具有第一量值的顶部脉冲，位于后端部分并具有第一幅度的最后脉冲和位于第一幅度之间的中间偏置部分 产生顶脉冲和最后脉冲并具有第二幅度。 基于记录脉冲信号，控制光源，并将激光脉冲照射在记录介质上。 在记录介质上形成与记录信号对应的记录标记。 在产生记录脉冲信号时，当记录介质被旋转驱动时，当记录介质被旋转地旋转驱动记录介质时，顶部脉冲的位置在顶部脉冲的位置之前移动 以第二控制速度驱动。

公开(公告)号：US5949751A

公开(公告)日：1999-09-07

申请号：US706265

申请日：1996-09-04

申请人： Kunihiko Horikawa ,  Eiji Muramatsu

发明人： Kunihiko Horikawa ,  Eiji Muramatsu

IPC分类号： G11B7/005 ,  G11B7/24

CPC分类号： G11B7/005 ,  G11B7/24

摘要： The optical recording medium includes a first layer which is in a state that includes different phases having different optical constants and in which information has been recorded. The second layer is capable of changing states, which states include different phases and different optical constants. There is also provided a method of reproducing information recorded on an optical recording medium which includes a first layer having different phases and different optical constants and a second layer capable of changing states, which states include different phases and different optical constants. The method employs irradiating the second layer with a laser beam, and reproducing information recorded on the first layer from an area corresponding to an area of the second layer where the optical constants change due to laser irradiation.

摘要翻译： 光记录介质包括第一层，该第一层处于包括具有不同光学常数的不同相位并且已经记录信息的状态。 第二层能够改变状态，其状态包括不同的相位和不同的光学常数。 还提供了一种再现记录在光学记录介质上的信息的方法，该方法包括具有不同相位和不同光学常数的第一层，以及能够改变状态的第二层，该状态包括不同的相位和不同的光学常数。 该方法使用激光束照射第二层，并且从与激光照射引起的光学常数变化的第二层的区域对应的区域再现记录在第一层上的信息。